Eureka

We're all familiar with the tale of Archimedes shouting "Eureka" when  he stepped into the bath

and postulated his Principle, with which I shall not bore you. Enough to say that, if the ancient Greeks had showers instead of baths, ships

would never have been invented. Which would be good because there would be no seasickness in the world. And no pirates. No British Empire. He was so pleased with himself that he ran excitedly naked along the streets of Syracuse and told everyone. Although that sure sounds like a modern day fantasy tale.

Another famous Eureka (aka "aha") moment was Newton and the apple.

He noticed that the apple fell down, rather than sideways or up. He was 25 years old at the time and one wonders how he hadn't noticed objects falling for the last 25 years. Did it never rain where he lived? Or snowed? Did the snow rise rather than fall? Come on Isaac, are you a bit Forrest Gump? Anyway, he proceeded to formulate his law of gravity, which we all now know because, when you trip over your shoelaces, you fall to the ground rather than floating up in the air. Where would have been without you?

Paul McCartney woke up one morning with a tune in his head (aha). He worked it up into a song which he called "Scrambled eggs". The lyrics ran:

Scrambled eggs, oh, my baby, how I love your legs - diddle, diddle - I believe in scrambled eggs

Before the Beatles recorded it they renamed it Yesterday. And improved (presumably completely rewrote) the lyrics. Thank goodness for that.

There is a city Eureka in California. And the word is enshrined in the state motto. I believe Arnold Schwarzenegger, when he entered the state governor's residence, uttered the famous word: "Aha!". When he left of course he said "I'll be back".

I'm afraid I cannot confirm the veracity of any of the above.